High-efficiency pulp washing squeezer

Abstract

The invention discloses a high-efficiency pulp washing press, which is characterized in that it includes a drum type washing device, a scraper type depulping device, a multi-roll press dehydration device and a crushing screw discharger, and the scraper type depulping device is arranged on the drum type washing machine. On one side of the mesh surface of the device, the multi-roller press dewatering device is connected with the scraper type depulping device, and a crushing screw discharger is arranged at the lower part of the multi-roller press dewatering device. The invention has the advantages of compact structure, stable equipment operation, remarkable energy-saving and consumption-reducing benefits, realizes the combination of washing and pressing dehydration functions, realizes the requirements of low-concentration pulp feeding and high-concentration pulp discharging with one device, and solves several problems in the production process. The technical problems that can only be solved with different equipment achieve the ultimate goal of simplifying the process and improving efficiency.

Description

technical field [0001] The invention relates to a high-efficiency pulp washing press, which belongs to the field of pulp and papermaking, and is suitable for washing and concentrating papermaking pulp, and can also be used for purifying and concentrating treatment of other fibrous materials. Background technique [0002] In the field of pulp and papermaking, washing and thickening pulp is an important process. In order to achieve different technological purposes, people have developed and designed various types of pulp washing equipment, such as drum vacuum pulp washer, twin-roll press squeezer, Fourdrinier pulp washer, screw extruder, rotary screen thickener and foreign DD pulp washer, etc. However, generally only low-consistency pulp intake and medium-consistency pulp discharge can be achieved, or high-concentration pulp feed and high-consistency pulp discharge can be achieved. It is more difficult to achieve the purpose of low-consistency pulp intake and high-consistency ...

AI Technical Summary

Problems solved by technology

However, generally only low-consistency pulp feed and medium-concentration pulp discharge can be achieved, or high-concentration pulp feed and high-consistency pulp discharge can be achieved. It is difficult to achieve the purpose of low-consistency pulp feed and high-consistency pulp discharge

For example, the commonly used vacuum washing machine has an inlet concentration of 2-3%, and the outlet concentration can only reach 10-12%; twin-roll and screw presses require a higher inlet concentration (above 6%) to achieve high pulp concentration. Thick pulp (such as 20-30%), and there are problems such as complex structure and high power consumption, so the application is limited

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